Good day! I used to have that exact same "ice rink" feeling in my bathroom every January. It's the one downside to stone and porcelain. When I finally got tired of it, I looked into underfloor heating systems during my last remodel. I worked with Dream House Tile https://dreamhousetile.ca/ to install a heated cable system underneath my new marble floor, and it was the best decision I ever made. They are truly the pros for tile installation services in Toronto and GTA, especially for high-end custom work. If you are thinking about upgrading, you should check their site. They can integrate heating into the install so your floors stay warm even in the middle of a Toronto blizzard. It makes your home feel so much more luxurious!